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A contractor quoting a central AC repair here starts with the compressor and the condenser fan, because those are the parts that have been starting and stopping through every cooling cycle the system has run. Homes in Greenville County, SC run cooling about four months a year, from June through September. Contactors burn, fan motors wear on their bearings, and compressors that have been working through that kind of heat load show it in their amp draw before they fail outright. A diagnosis that skips those components and jumps straight to refrigerant or controls is working in the wrong order.
Half the homes in Greenville County, South Carolina were built in 1992 or earlier (2020-2024 ACS 5-year). That puts a large share of the county's homes in a range where the ductwork and electrical service were designed for central cooling, not retrofitted to accommodate it later. When a system fails, the repair turns on what the opened unit actually contains: whether the compressor is drawing correctly, whether the capacitor has held, whether refrigerant levels point to a slow leak at a fitting or coil. The house rarely explains the problem. The opened equipment does.
The Parts of a Central AC a Contractor Checks First
The outdoor condenser unit sits outside the house, usually on a concrete pad along an exterior wall, and it holds the compressor and condenser coil. Both are common starting points when a system stops cooling. The compressor is the heart of the refrigerant circuit, and the condenser coil sheds heat to the outside air.
Inside the house, the air handler or furnace cabinet holds the evaporator coil and the blower fan, typically in a closet, attic, or mechanical room. The evaporator coil is where a refrigerant leak or a freeze-up shows up first. The blower fan is what a contractor checks when airflow across the vents has dropped.
The drawing shows the general layout of a central AC system, and a licensed contractor determines which components and conditions apply to this particular house.
Get matched in Greenville CountyGreenville County, by the numbers
215 severe weather events were recorded in Greenville County, South Carolina between 2015 and 2024.
NOAA National Centers for Environmental Information, Storm Events Database, bulk CSV export, events 2015-01-01 through 2024-12-31.Half the homes in Greenville County, South Carolina were built in 1992 or earlier (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesGreenville County, South Carolina holds 238,260 housing units (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesOwners occupy 68.9% of the occupied homes in Greenville County, South Carolina (2020-2024 ACS 5-year).
U.S. Census Bureau, 2020-2024 American Community Survey 5-Year EstimatesCodes & Standards Governing Central AC Repair in Greenville County, South Carolina9 sourced rules and standards
What the Repair Visit Looks Like
Split-system central air conditioners rated below 45,000 Btu/h manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Split-system central air conditioners rated at or above 45,000 Btu/h manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Split-system central air conditioners manufactured between January 1, 2015 and December 31, 2022 had to meet 13 SEER, the metric that preceded SEER2.
Single-package central air conditioners manufactured on or after January 1, 2023 must meet a federal minimum of 13.4 SEER2.
Space-constrained central air conditioners manufactured on or after January 1, 2023 must meet a federal minimum of 11.7 SEER2.
Federal efficiency standards for split-system central air conditioners and heat pumps are set on each certified combination of outdoor unit and indoor coil rather than on the outdoor unit alone.
Residential and light commercial air conditioning and heat pump systems assembled in the field, including mini-splits and unitary systems, may not be installed on or after January 1, 2025 using a refrigerant with a global warming potential above 700.
A field-assembled system whose specified components were all manufactured or imported before January 1, 2025 carries no installation compliance date under the refrigerant restrictions and may still be installed.
Licensing Rules in Greenville County, South Carolina
South Carolina requires a mechanical contractor license for contracting work whose total cost of construction is greater than ten thousand dollars.
Severe Weather Events in Greenville County
Storm activity puts hours on HVAC equipment fast, pushing components toward failure well ahead of schedule. How hard the weather runs a system is a local fact, and repair needs in Greenville County reflect the conditions here.
215 severe weather events, 2015–2024. Source: NOAA National Centers for Environmental Information, Storm Events Database.